Avoiding consecutive patterns in permutations

被引:6
|
作者
Aldred, R. E. L. [2 ]
Atkinson, M. D. [1 ]
McCaughan, D. J. [2 ]
机构
[1] Univ Otago, Dept Comp Sci, Dunedin 9054, New Zealand
[2] Univ Otago, Dept Math & Stat, Dunedin 9054, New Zealand
关键词
Permutation; Consecutive pattern; Enumeration; GENERALIZED PATTERNS; AVOIDANCE;
D O I
10.1016/j.aam.2010.03.005
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The number of permutations that do not contain, as a factor (subword), a given set of permutations Pi is studied. A new treatment of the case Pi = {12...k} is given and then some numerical data is presented for sets Pi consisting of permutations of length at most 4. Some large sets of Wilf-equivalent permutations are also given. (C) 2010 Elsevier Inc. All rights reserved.
引用
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页码:449 / 461
页数:13
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